In Afghanistan, it is hard to paint a picture of what decades of war and unrest have done to the country. The BBC has chosen to try, by traveling Highway 1 - the two-lane road that, in better times, would connect two-thirds of all Afghans.

In Afghanistan, it is hard to paint a picture of what decades of war and unrest have done to the country. The BBC has chosen to try, by traveling Highway 1 - the two-lane road that, in better times, would connect two-thirds of all Afghans.